Peat

n. [Allied to A-S. pitt, pytt, Eng. pit; Icel. pittr, pytr, pool, well, O. H. Ger. puzza, puzzi, well, cistern, pool, N. H. Ger. pfütze, a hog, Lat. puteus, well, cistern.] A substance of vegetable origin, consisting of roots and fibers in various stages of decomposition, and found, as a kind of turf or bog, in low situations, where it is always more or less saturated with water. When dried, it is often used for fuel.

n. [Probably contracted from Fr. petit, little, small. Cf. Pet.] A small, delicate person. [Obs.]